The tracert I'm using is the one that comes with Windows. Although you say it takes up 80% CPU, I've found that I can run like 12 instances of this program at once. Maybe it's just got a high priority and will take over from anything else? I'll check the netmap source code for "nasty" loops that might be hogging CPU.

[edit] No, no loops in there apart from the main one around the outside. It must be Windows mis-managing DOS terminal emulation or something. [/edit]

[edit#2] Hang on a minute - the "spawnl" function I'm using to start tracert returns an 'int'. I wonder if that's the Process ID? If it is, I think I could use a Windows function to demote it to background priority class. [/edit#2]

I tried setting all the related apps to idle priority but it made no difference.

Also when I was running several copies of netmap, the web.dat file got cleared out somehow and I lost 700 nodes. It you want to allow multiple copies of the prog to run you need some form of file locking to stop data being lost.

I can't remember if I put this up on the website, but running multiple instances does corrupt the file. I tried having a file that said whether the first file was being written to or not, but then that got corrupted , so I gave up and recommended not running more than one instance at a time.

In retrospect I could get each instance of the program to RENAME the file to something else as it is writing to it and then rename it back. And then if the file "isn't there", wait for it to appear.

Re: the priorities thing - I think this is Windows and I can't do much about it unless I write the pinger myself.

[edit] That's odd. For some reason the screenshot of netview wasn't uploaded, and it wasn't in my local website directory either. Well anyway I've retrieved it now. [/edit]

"As every 11-year-old kid knows, if you concentrate enough Van-der-Graff generators and expensive special effects in one place, you create a spiral space-time whirly thing, AND an interesting plotline"

I've got a netmap program that runs without tracert running now, but right now the _viewer_ for it is the problem - it's tricky getting the program to spread out that number of nodes correctly.

"As every 11-year-old kid knows, if you concentrate enough Van-der-Graff generators and expensive special effects in one place, you create a spiral space-time whirly thing, AND an interesting plotline"

Hey all, I'm on the college computers atm, I tryed to use the netmap to do the network here but I got nothing so I tryed with all *'s but I still got nothing, the mashines here are XP soooooo I guss there might b a bug? Can anyone recomend a nice prog the does a good map that I could use on these mashines?